镁合金及其成形技术-畅读网

　　　　

镁合金及其成形技术

作者：王渠东

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科学技术 >> 工业技术

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内容简介:

本书系统地介绍了各种镁合金的组织与性能、成形技术及其应用，重点对镁合金的液态成形技术和固态成形技术进行了详细介绍。其主要内容包括：概述、镁合金的组织与性能、镁合金的熔炼、镁合金的液态成形、镁合金的固态成形、镁合金的表面处理、镁合金的应用。本书密切结合生产实际，内容全面、新颖，图文并茂，数据翔实，实用性强，是一本关于镁合金极具参考价值的技术资料。

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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 45 LIMIT 1 [ RunTime:0.022900s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.011153s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.012657s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1771549040 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:4.507879s ]

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